Paper spacing device



c. D. LAKE 2,126,644

PAPER SPACING DEVICE Filed 061'.. 26, 1937 6 SheefCS-Sheeil 1 /ll f-Aug..9, 1938. c. D. LAKE 2,126,644'

1 PAPER SPACING DEVICE Filed oct. 2e, 19:57 e sheets-sheet 2 FIG.2.

INVENTOR.

m ATTORNEY.

Aug. 9, 1938. c. D. LAKE PAPER SPACING DEVICE Filed Oct. 26, 1937 6Sheets-Sheet 3 IN VEN TOR. e 24. BY M A TTORNEY.

Aug. 9, 1938. c. D. LAKE PAPER SPACING DEVICE Filed oct. 26, 1937 6sheets-sheet 4 rllllll-Illllllll` y MMA A TTORNEY.

Mmmm@ 1938. c. D. mm ERGMM PAPER SPACING DEVICE 6 sheets-sheet 5 Filed001'.. 26, 3.957

` C. D. LAME PAPER SPACING DEVICE Filed 001;. 26, 1937 6 SheelLS--Shet 6FIG. e.' m

Mmmm M Patented Aug. 9, 1938 7 UNITED STATES PATENT OFFICE 2.12am. rmasrnonro navloa clair D. rake, Binghamton. N. Y., mamar to fInternational Business Machines Corporation,V New York, N. Y., acorporation of New York Applicants omni-Iza. iss-1, semi No. 171,01:

s claims. (ol. 10izen The invention relates to bill feedingl mechanismsfor `printing machines and'more particularly to the type provided with aselective control whereby the bill may be fed to a predetermined extentto a selected printing line.

-The invention is preferably' adapted for use in machines whereinseparate bills or ledger cards are successively fed'from a' supply!stack to the prlntinginechanism to thereby cause the printv ing of anitem on a single line of the bill. Thereafter'the bill may be ejectedfrom the platen and stacked in a storage hopper.

` The main object of the invention is to provide an improved "electricalcontrol device for manuio, `ally selecting` the printing line of theledger card.

Another object of the invention is to provide 'a stacking mechanism forthe improved bill printing machine which is continuously operable sothat by its continuous operation it will receive the printed 'bills 'andstack them by successive operations. yIn this manner themachine operatessmoothly and vwithout jerks or shocks.

In more detail, bills or ledger cards are successively fed to a platenby successive cycles of oper or ation. At a predetermined point in thecycle of operation of the machine an electrical circuit is closed bycam-operatedcontacts tocause the energization of a magnet which unlocksthe platen.

and closes contacts which close a circuit to a 3o coil of amagnetic'clutch. Themagnetically controlled'clutch is now engaged tocause platen rotation. By means of a commutator arrangement rotatablewith the platen a selected livecommutator segment wiilwstopy therotation of 3,-, the platen lby energizing a relay magnet which opensits relay contacts and which latter causes the opening of the circuit ofthe magnetic clutch coil. The latter is now deenergized and platenrotation terminatesv during which time the printf4() ing operation takesplace and the platen is locked.

' fAfter the printingv operation; cam controlled contacts. again closeto resume thev rotation of lthe vplaten byclosing the circuit to themagnetic clutch coil and the platen whichis again unlocked automaticallyrotatesv a 'supplemental extent to vfeed the -printed bill to thestacker mechanism.'

The initial feed of theiedger card to the selected printing line andthesupplemental' feed.

5,0 combines the same extent irrespective of the printing line selected.The stacker mechanism continuously rotates and since its extent ofrota-- tion is always the same and corresponds to the combined feedgiven to the bill the feedlngoper- 5;', ations given to the platenpermit the continuous operation of the stacker, and thus the machineruns smoothly and without shocks.

, Further objects ofthe instant invention reside in any novel feature ofconstruction or operation or n'ovel combination of partspresent in the 5embodiment of the invention described and shown in the accompanyingdrawings whether within or `without the scope of the appended claims andFig.. 4A is a detail view of the magnetic clutch ior efecting platenrotation.

Fig. 4B is a detail view of a selective gear clutch device. I i Fig. 5is a central sectional view of the bill feed mechanism.` y i v Fig. 6 isan electrical "wiring diagram of the' machine. v

.Fl-g. 'i' is a timing diagraml of certain cams adapted to eifectclosure of .electrical contgctlsi Purely as a matter of convenience in dtion, the bill feeding and printing mechanism has been shown in thedrawings as Vapplied to an elec 3 5 trical accounting and statisticalmachine now well known in the art as the International electricaccounting machine." The basic principles of operation of this machineare vdescribed in numerous patents 'to -Herman Hollerith and 4o others,and the machine shown in general out-l line in Fig. 1 may be the sameone as described in the LettersPatent Nos. 1,822,594, 1,782,145 and1,379,268 which are merely representations of v many patents disclosingthis type of machine. As 45 the mechanism of the machine forms no partof the bill feeding attachment, except as particulai-ly pointed outhereinafter, only a few details of such type of machine will be givenherein to enable those skilled in the art to understand how 60 the billfeeding attachment may be applied to a conventional accounting machine.

The present bill feeding and printing mechanism is an improvement overthat shown in the ,patent to W. P. Scharr, No. 2,046,001 and isparticularly relied upon for showing certain details of the mechanismnot involved in this invention.

Numeral 20 (Fig. 1) indicates the base of the accounting machine whichis provided with the usual Hollerith printer control magnets 2|. Themagnets 2| control the elevation of the type bars 22 in the mannerdescribed in the cited patents; the selected type being impeiled toprinting position by the usualhammers 24 against a ledgercardorbillsurroundingapiaten 22.

Bhaft 20 (Flg. 2) may be considered as the main driving or listing shaftof the bill printing unit and drives a gear 20 attached thereto. 'Ihegear 20 drives a gear 21 which is attached to a shaft corresponding tothe similarly designated shaft in Patent No. 2,046,001.

'lhe means for removing the bills from the supply hopper is preciselythe same as that shown in Patent No. 2.040.001 to which reference shouldbe had for further details of construction and operation but thismechanism is generally described herein. v

lhe bills or ledger cards 40 (Fig. 5) are removed from a'supply hopper20 (Fig. 5) by a picker 04 carried by picker slides 02. the movement ofthe slides 02 to the left removing the lowermcst card to feeding rollersto be later referred to. 'lhe slides 02 carrying pickers 04 are operatedby means of gea'x sectors 10 mounted arm lllvoted to a gear 14,' whichis 10. by a screw-stud which is threaded intoy the hub of the gear 14.described in Patent No. 2,046,001 the slides 02ersnowtobedescribedindetail.

'lhenrstsetofrollersreceivingtheeiected bill or ledger card comprisesrollers 00 and 00 (Pig. 0). These rollers are intergesred by pinions 04and 01 (Hg. 2) and the latter meshes with an idler gear |04. 'naisarrangement is the same as Patent No. 2.040.001 and the same parts aredesignated by the same reference numerals.

However, in the present arrangement gear |04 meshes with a pinion |00attached to a gear |00 meshing with the driving gear 14, and by suchgearing drive the feed rollers 00-00 toconveytheledgercardorbilltothesecondset of rollers 00, 00 (l'ig. 0)correspondingly designated in the Patent No. 2,046,001. 'Ihe rollers 00,00 are intergeared by pinions i0| and |00 (Pig. 2) and the lower pinion|00 as stated' meshes with the gear |04, thus constituting the drivingmeans for rollers 00, 00, and 00, 00.l

Diii'ering from the Patent No. 2,046,001` the next set of rollersconstitute a feeding roller ||2 (Fig. 6) composed of insulating material.and lower cooperating metallic contact and feeding roller ill. Theroller ||2 is grooved or slotted circumferentially so that each slotreceives an analysingbrush iilwhichbearsuponthecontact roller lil.Pinions |I0 (lig. 2) internal' the rollers ||2,\i|0 andthelower gear ||0is attached to a gear ||1 (dotted in l'ig. 2) which meshes with thegearI 14. Boththe upper and lower roller |i2. ||0 serve a dual purpose,one for feedingtheledgercardandtheotherforthepurpose oflnllyling thecardbeing'fed. nie gear 14 drives the pairs of feeding rollers 00, 00;00, 00;

H2. lil; in synchronom relationship with the tabulating card, that is.correfeedingofthe sponding index points of the tabulating card andledger card are analyzed so as to eil'ect by means not involved in' thisinvention a comparing operation to compare the perforations on thetabulatlng card 'with the perforations on the ledger card.

A fourth set of feeding rollers |02, |02 (Fig. 5) is provided -and theycorrespond to rollers designated |00, |01 of Patent No. 2,046,001. Theshafts of the rollers |02. |02 are intergeared as in the patent bypinions |00, |00 (Fig. 2) and to the gear |00 there is secured a gear|I0 meshing with a gear iii attached to the gear II1. It is also evidentthat since rollers |02, |02 are driven by gear 14 they will also feedthe ledger card in synchronous relationship with the feeding of theytabulating card.

The platen 22 is attached to a shaft I i0 and is provided with the usualknobs ||0 (Fig. 4) secured to the shaft ||0 to turn the platen manually.Extending parallel with the platen and beneath it is a shaft providedwith a number of rollers |2| and between the platen 22 and rollers |2|the ledger card is fed so that a subsequent rotation of the platen willcause the feeding of the ledger card to the printing line. The

vmagnetic clutch for causing the rotation of the vable forl certaintypes ofaccounting work. For

feeding bills or'ledger cards by the rotation of the platen 22 a higherspeed is required and this is selected by a selective gear drive now tobe described. f

Referring to l'igs 2, 4 and 4B a slidably mounted rod |20 has attachedthereto a shifter fork |20 ensaging a groove |2| of a sleeve |22 towhich is secured a gear |22 and the aforementioned gear |22. When abutton |24 attached to rod |20 is depressed inwardly the shifter fork|20 will slide gear |22 out of cooperation with gear |22 and cause gear|22 to mesh with the gear 20. the pinion |20 being suiiiciently wide toretain the meshing relationship with gear |22. Gear 20 will drive thegear |22 at a much higher speed than is effected by the gear ratio ofgears |22, |22, thus causing the gear |20 to be driven at a speed twiceas fast as would be effected by gears The-magnetic clutch for clutchingthe selective gear drive tothe platen 22 will n'ow be described withparticular reference to Figs. 2, 4 and 4A.

'lothegear |20thereissecuredacasting |20 which is recessed to receive amagnetic coil |20. The ends of the winding of the coil |20 areelectrically connected to insulated collector rings 21 carried bythecasting |00 and against these rings |21 brushes |20 (see l'ig. 2)continually bear. By these brushes |20 and coliectorrings |21 current issupplied to the coil |20 so that when the coilisenergizedthecasting|20wiilbemagnetisedand magnetically attracted to a disk |20 attached tothe platen supporting shaft |10. The gear |20 and casting |20 will slideon the shaft ||0 to eifect thev desiredv magnetic clutch contion ofrollers |2| fore the first bill in the supply hopper reaches theplaten.` After leaving therollers |06i|01 of said patent the card is fedbetween the platen 23 and rollers |2| and the ledger card 48buck1es lasshown in Fig. 5. prior to the rotation of the platen. This buckling iseiected because the feed .rollers and platen runat different speedsandis la preferable mode of operation as it corrects any inaccuracies inthe location ofthe ledger card due `to slipping or other'conditionswhich may occur while the card is passin'gthrough the feed rollers.

attachent@ the shaft ne is a gear an which through an'idler gear 3|ydrives a gear 32 (Figs. 3v

u and 1) which is attached to a stub shaft 33. .At-

t line of the cardtoprinting position.

taehed to the shaft33 is aline spacing control disk 34 having seventeenintegral teeth 35 and a tooth 35 adjustably mounted on the disk 34. Inthe home positionoi' the disk 34 the adjustable tooth 38 is engaged by arecess 31` of a latch arm 38.

`An armature 40 is part `of the latch arm 38 so `that whenamagnet 4| isenergized it will attract the armature 40 and rock the latch arm 38. toremove the recess 31 from engagementwith the adjustable clutch tooth 36.'I'he platen is now unlocked so that it'can be'rotated by the magneticclutch to feed `the card a predetermined amount by the rotation oi.' theplaten to bring a selected The card has preferably seventeen printing ilines and to conform to the selection of one of these lines the disk 34is providedwith seventeen teeth 35. The tooth 38 is adjustable so`thatby adjustment of this tooth the location of the first printingline' of the ledger cardin relation to its top edge can be changed.

` When current is applied to lines 42 and 43 by the closure of switch S(Fig. 6) a' circuit is closed from line 42 through relay contacts |1b ofrelay .magnet R.|1, (not involved in the present inf vention) throughcontacts 44 which are closed when 'the'magnets 43a are deenergized,magnets "b 43a, to the line side 43.' The energization of magnet'43awill attract itsarmature -and rock a. .latch arm 45 whereby a pin 46carried thereby will per- Y mit the opening o! contacts 44. However, are- Referring t0 Fig.

rotates certain cams. such as a cam 50 for closing sistance 4Ref-M0 willprovide a shunt for contacts l44to retain lmagnets 43a energized. The4latch arm' 45 is similar to latch arm 38 and as long as magnets 43a areenergizedthe latch arm 45 is in shifted position to permit a tooth 41o!a constantly. turning disk 48a to'pass by the latch arm 45 without,being caught. The gear 3| drives a gear 49 (Fig. 3) to which the disk48a is secured andsince the latter turns with the disk 34, since botharedriven by gear 3|, the tooth 41 ywill not interfere withV latch arm45 as long as magnet 43a is retained energized, and therefore disk 34will be the controlling instrumentality in connection with latch arm 38.The disk 48a is used for other control purposes not involved inthepresent Ain vention and the means just described renders it ainoperative. i

3 vit wlll'be seen that shaft 15 contacts at predetermined times. 'Whencam contacts CC--4 (Fig. 6) close early in the cycle a circuitis closedfrom line 42 through contacts CC-4,

through normally closed relay contactspR-b, contacts 54 which are nowclosed because magnet 4| is deenergized, magnet 4| to the line side 43.By the energization of magnet 4| latch arm 38 will now be rocked tocause the opening of contacts 54, but these contacts will be shunted bya resistance R|15 to keep the magnet 4| energized and keep contacts 54open, and by means of a pin 55 carried by the latch arm 38 closecontacts 56. The platen is now unlocked for rotation and which rotationeffected by the energization of coll |36 bya cir uit control means nowto be described.

Cam contacts CC-I close `shortly' after cam contacts CC-4 close to closea circuit'described as follows: linev side 42,.can1 contacts CC`4, CC-|CC-f3 which are already closed when cam contacts CC--I close, contacts56 now closed,

magneticfclutch coil |38, to the line side 43. l'lhe magnetic clutch nowbeing engaged the platen will rotate to the selected line position, theline being selected by means now to be described.

Attached to the shaft 33 is an arm |4| (Fig. 4) carrying a brush |42anda brush |43, the latter being in continuous contact with a ring |44and the former adapted to contact with a series of seventeen electricalcontact points or segments |45, corresponding to the numberof teeth'35of disk 34. u u

u A dial switch |48 (Fig. 2) is provided with a switch arm |41 settableto contact a selected one of `a series of contact points |48 which arewired as shown in Fig. 6 to the segments |45. An indieating disk'i43(Fig. 2) has the numerals 1-17 to conform' to the number of printinglines of the ledger card'and by setting the switch arm |41 to thenumeral corresponding to the printing line selected the extentoi thenecessary rotation ofv the platen will be controlled and determined.

The circuit to energize the clutch coil |36 was previously described andsince cam contacts CC--4 and CCI-2 are now closed the circuit extendsfrom line side 42 to the ring |44, brush |43,

brush |42, the latter rotating with the rotation ofthe platen untilbrush |42 strikes a segment |45 conforming to the setting of` arm |41.In Fig. 6 the arm |41 is shown at the l0 position so that`when" the thsegment |45 is engaged by brush |42 the circuit will extend from'arm |41to relay magnet R--I6 to the other line side 43. Relay magnet R-it willopen its relay contacts R--ibso that the magnets 4| will be deener-Igized thus permitting latch arm 38 to be rocked by its spring (Fig. 3)to engage the tooth 35 corresponding to the selected printing line.` Ofcourse, since contacts 56 now open the circuit to y the magnet clutch`coil |36 will be opened, thus stopping the rotation of the platen.

Attention is directed to the `fact that the coil |36 is deenergiaed justprior to the time that thelatch arm 38 strikes the top oi" a tooth 35preceding the selected tooth and as the drop is not sumcient to opencontacts 56 the magnetic clutch remains energized until the recess 31 oflatch arm 38 drops to engage the adjacent tooth. The disk 34 then coaststo latchlng position. p

Cam contacts CC--4 and CC--2 remainclosed 'during the printing operationwhich is effected by the printing bars 22 of the tabulatlng machinethereby printing the information printed under control of the tabulatingcard on the ledger card or bill. It will be noted that the holdingcircuit to eect this is from the line side 42,cam contacts (2C-4, camcontacts (2C-2, wire lli, relay contacts n-ita now closed, vrelay magnetRi-Ii to the line side Il.

After the printing operation at 228 cam contacts CC-I and cam contactsCC-I open the latter breaking the holding circuit for relay R-,it thuscausing the closure of the relay contacts B ib, andvopening of relaycontacts E c. The closing of relay contacts IIb cause magnets Il to beenergized rocking latcharm to unlock the platen, and to close contactsIl.

The closure of these contacts It will when caxnv contacts CC-I again cloafter they have opened cause the energlsatlon of the magnetic clutchcoil Itland the platen will lnow rotate after' the printing operation.

Brush il! will eventually contact with the last or` home" segment Il!and by a wire III ca'xlimse' the energisation of relay magnet It-II.circuit for relay magnet R-ii is held by the relay contacts R-Ila andcam contacts CC--i and' CC-l until cam contacts CC-I and CC-l breakabout 357. When relay magnet R-il energizss it causes relay contactsRf-IIb to open to deenergize magnets Il and cause the' latch arm 8l tobe rocked by spring ill to open contacts Il thus deenergizing themagnetic clutchcoil I It. Thelatcharmalrocksiustpriorwthe timetheadjustable tooth comes to home position, and as the disk Il' coasts tohome position the recel t1 of the latch arm Il engages the tooth Il. meparts are now at normal position ready for thenextledgercardcr'billmlzvefedtotheplaten.`

The ledger card or bill stacking mechanism is the same in generalcomtruction as in the aforementioned Patent No. 2,046,001 differing inthe driving mechanism therefor. In the patent the stackerisdriventhroughaGenevadrivebythe main drive shaft and is operated in astep-by-step fashion, whereas in the present arrangement the stackerdrum rotates continually. This is provided for by having the sum of thefeeding and electing movements of the platen during each cycle ofoperation to be the same of the selected printing line of the ledgercard orbill. In this manner the stacker drum can rotate continually andobiectionable shocks due to starting its rotation from :est is avoided.thus providing a smoother operating machine than has been possibleheretofore.

'I'he stacker drum 2li is secured to ashaft I" and the drum is providedwith two setsl of resiliently urged stacker fingers 2l! corresponding tothose designated 221 in the Patent No. 2,046,001. These fingers 2l! areadapted to engage a bill Il (see Ali'lg. 5) when the latter has beenejected by the platen 2l.- Rollers 2 as best shown in Fig. 4 lareintergearcd by gears 2",.2 attached in the ahaftl carrying the rollers2li. 'Ihe shaft carrying the forward rollers III has secured thereto agear 25| meshing with a gear Ill secured to the platen shaft lil. Thusit is evident that the rotation of the platen Il will cause thissimultaneous rotation of rollers Il! to elect a bill beneath one of thesets of ngers 262, as shown in Fig. 5.

, Themeansforoperatingtheflngers lllsoas to press the bill against thestacker drum 2li comprises the same mechanism shown in the Patent No.2,046,001 and for this reason is not amaca described herein. If sodesired, the fingers Il! may be resiliently held against the drum.

` the drum rotates it carries the'bill with it an "eventually the topedge 'of the bill will be brought into contact with lugs lll iFlg; 5)thus shipping the bill from the drum and stacking it in a supply hopperlll.

Attached to the shaft Ill is a gear I" (Fig. 2) meshing with a pinion20| to which is secured a gear Il! meshing with the aforementioned gearill. thus communicating in the stacker drum a continuous rotation tosuccessively stack the ejected printed bills in the storage h per 2li.

While there has been shown anddescribed and pointed out the fundamentalnovel features of the invention as applied to a single modification itvwill be understood that.various omissions and substitutions and changesin the form and details of the device illustrated and in its operationmay be made by those skilled in the art without departing from thespirit of the invention.

' for said platen, means initiated in operation by means in said machinefor causing said driving meansl to be effective to rotate said platen.means for determining the extent of rotation of said platen comprising amovable contact means mov-v able with said platen and commutatorcontacts contacted by said contact means, means for selectivelyconnecting a contact in an electrical circuit, a relay magnet in saidcircuit and energized when the lselected contact and said contact meanscloses said circuit, and means controlied by said magnet for renderingthe driving means ineffective to rotate said platen.

2. InraV machine of the class described, having printing means, thecombination of a platen. a l

driving means "therefor, a magnetic clutch interposed between saidplaten and saldiv driving means. means to energize said clutch to causesaid driving mans to rotate said platen, a commutator comprising aseries of contacts and a contact device rotatable with said platen tosuccessively engage said contacts, means to selectively place one of thecontacts in a circuit, means in said circuit for deenergizing saidmagnetic clutch when said contact device contacts with a selectedcontact to interrupt the rotation of said platen, and means forretaining the deenergi'sation of said magnetic clutch during theprinting operation of the aforesaid printing means.

3. In a machine of the class 'described the comf bination with a platen,locking means therefor, v magnetic means for releasing said lockingmeans,

a driving means for said platen, a magnetic clutch for causing saidplaten to be driven by said driving means, electrical contact closingmeans for closing a circuit to said magnetic means to release saidlocking means, circuit closing means operable by said magnetic means forclosing a supplemental circuit to energize said magnetic clutch tothereby initiate the rotation of said platen by said driving means, acommutator having a plurality of contacts, means to selectively placeone of the contacts in an electrical circuit, a relay magnet in saidcircuit, means operable with the rotation of said platen to successivelyengage with said contacts to close the last-named circuit through theselected contact w energize said relay magnet, and means controlled bysaid relay magnet to deenergize said magnetic clutch to interrupt therotation o! said platen by said driving means.

4. In a machine of the class described, a platen, a driving meanstherefor, a notched disk movable with said platen and provided withlocking teeth, an arm normally engaging a tooth of said disk, circuitclosing means operated by said machine for causing the operation ofmagnetic means to actuate said arm to release said disk whereby saiddriving means rotates said platen, a control means for determining theextent of rotation of said platen comprising a contact device rotatablewith said platen and said disk and successively contacting with contactsinsertible in an electric circuit, means for selectively inserting acontact in said circuit, and means in said circuit for causing saidmagnetic means to be ineifective to thereby release said arm forengagement with a tooth of said disk to lock said platen against furtherrotation.

5. In a machine of the class described, in combination, a platen, adriving means therefor, a control means for determining the extent ofrotation of said platen comprising a contact making device rotatablewith said platen and contacting with a series of contacts, means forselectively placing one of said contacts in an electrical circuit,magnetic means in said circuit for causing the operation of devices forinterrupting the rotation of said platen by said driving means, meansfor automatically causing said driving means to supplementally rotatesaid platen, and a supplemental contact in said circuit and engageableby said contact making device when said platen has been rotated asupplemental extent for causing said magnetic means to cause theoperation of said devices to interrupt the rotation of said platen bysaid driving means.

6. In a machine of the class described, a platen, a driving meanstherefor, a clutch interposed between said platen and said drivingmeans, a commutator comprising a contact making device and a series ofcontacts selectively placed in an electrical circuit, means forselectively placing a contact in said circuit to close said circuit whensaid contact making device engages therewith by the rotation of saidplaten, means in said circuit and energized by the closure thereof fordisabling said clutch for interrupting the rotation of said platen,means for thereafter automatically causing said clutch to rotate saidplaten a supplei mental extent and to an extent dependent upon thecontact selected, and means comprising a contact of said commutatorengageable by said contact making device for closing a circuit to causethe operation of magnetic means for disabling said clutch to interruptthe rotation of said platen after its supplemental extent oi rotation.

7. In a machine of the class described, in combination, a platen, anormally idle driving means for said platen', means initiated inoperation by means in said machine for causing said driving means to beeifective to rotate said platen, means for determining the extent ofrotation of said platen comprising a movable contact means movable withsaid platen and contacting commutator segments, means tor selectivelyplacing a segment in an electrical circuit, a relay magnet in saidcircuit and energized-when the selected segment and said movable contactmeans closes said circuit, means controlled by said magnet for renderingthe driving means ineffective to rotate said platen, means for retainingsaid relay magnet energized during a printing operation, means forautomatically rendering said driving means effective at the completionot the printing operation to supplementally rotate said platen, andmeans for subsequently terminating the rotation of said platencomprising a segment in said circuit and contacted by said movablecontact during the supplemental rotation o! said platen for energizingsaid relay magnet to cause the operation o1' the means controlledthereby for rendering the driving means ineffective.

8. In a machine of the class described, a driving means therefor, arotatable stacker drum for bills and continually rotatedby said drivingmeans, a platen carrying said bills, means for causing said drivingmeans to rotate said platen, means to control the last-named means todetermine the extent of rotation of said platen for selecting theprinting line, means for thereafter causing said driving means tosupplementally rotate said platen to an extent dependent upon theprinting line selected, both of said rotations of said platen feedingsaid bills a constant extent irrespective of the printing line selectedto feed the bill to said stackerr drum.

CLAIRD. LAKE.

